Square ashtray



FIG. 1 is a top perspective view of my square ashtray design, viewed from a position toward the back side of the square ashtray;

FIG. 2 is a front side view of my design;

FIG. 3 is a top view of my design;

FIG. 4 is a back side view of my design;

FIG. 5 is a bottom view of my design;

FIG. 6 is a right side view of my design; and,

FIG. 7 is a left side view of my design. 

The ornamental design for a square ashtray, as shown and described. 